68048159 has 4 divisors (see below), whose sum is σ = 68223480. Its totient is φ = 67872840.

The previous prime is 68048153. The next prime is 68048179. The reversal of 68048159 is 95184086.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68048159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68048153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87077 + ... + 87854.

It is an arithmetic number, because the mean of its divisors is an integer number (17055870).

Almost surely, 2^68048159 is an apocalyptic number.

68048159 is a deficient number, since it is larger than the sum of its proper divisors (175321).

68048159 is a wasteful number, since it uses less digits than its factorization.

68048159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175320.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 68048159 is about 8249.1308026967. The cubic root of 68048159 is about 408.2618445259.

The spelling of 68048159 in words is "sixty-eight million, forty-eight thousand, one hundred fifty-nine".